Abstract:
A dispersion liquid contains a metal oxide particle surface-modified with a silane compound and a silicone compound, when a transmission spectrum of the metal oxide particles that are obtained by vacuum-drying the dispersion liquid is measured in a wavenumber range of 800 cm−1 or more and 3800 cm−1 or less with FT-IR, IA/IB≤3.5 is satisfied (IA is a spectrum value at 3,500 cm−1 and IB is a spectrum value at 1,100 cm−1), and, when the dispersion liquid and methyl phenyl silicone are mixed such that a mass ratio of a total mass of the metal oxide particles and the surface-modifying material to a mass of methyl phenyl silicone becomes 30:70 and the hydrophobic solvent is removed, a viscosity is 9 Pa·s or less.
Abstract:
Provided is a method for surface-modifying inorganic particles having a mixing step of mixing at least a surface-modifying material and the inorganic particles to obtain a liquid mixture and a dispersion step of dispersing the inorganic particles in the liquid mixture, in which a content of the inorganic particles in the liquid mixture is 10% by mass or more and 49% by mass or less, and a total content of the surface-modifying material and the inorganic particles in the liquid mixture is 65% by mass or more and 98% by mass or less.
Abstract:
Provided is an electrostatic chuck member including: a dielectric substrate having a placement surface on which a sample is mounted, wherein the dielectric substrate comprises a first supporting plate and a second supporting plate which are stacked in a thickness direction thereof; and an adsorption electrode embedded in the dielectric substrate, in which a gas flow path is provided by a recessed groove, which is provided between the first supporting plate and the second supporting plate which have surfaces facing each other, wherein the recessed groove is formed in at least one of the surfaces thereof and is covered with the other thereof, a dimension of the gas flow path in a height direction is 90 μm or more and 300 μm or less, and a width dimension of the gas flow path is 500 μm or more and less than 3000 μm.
Abstract:
A curable silicone resin composition is provided, including (A) a curable silicone resin-forming component of which a viscosity is 0.02 Pa·s or greater and 100 Pa·s or less, (B) surface-modified metal oxide particles which are surface-modified by a surface-modifying material having a reactive functional group and have an average primary particle diameter of 3 nm or more and 10 nm or less, and (C) a silicone compound having a reactive functional group of which a viscosity is less than the viscosity of the (A) component and is 0.01 Pa·s or greater and 1.0 Pa·s or less and having a content of 0.1% by mass or more and 15% by mass or less based on a total amount of the composition, in which a viscosity is 1.0 Pa·s or greater and 100 Pa·s or less.
Abstract:
Provided are a surface-modified metal oxide particle dispersion liquid and the like including surface-modified metal oxide particles that are dispersed in a dispersion medium, the surface-modified metal oxide particles being obtained by modifying surfaces of metal oxide particles to have hydrosilyl groups, hydrophobic functional groups, and silanol groups. In the surface-modified metal oxide particle dispersion liquid, a ratio of the hydrosilyl groups to the silanol groups is 5:95 or higher and 50:50 or lower.
Abstract:
A dispersion liquid according to the present invention is a dispersion liquid containing metal oxide particles which have been surface-modified with a silane compound and a silicone compound, in which, when the dispersion liquid is dried by vacuum drying to separate the metal oxide particles, and a transmission spectrum of the separated metal oxide particles is measured in a wavenumber range from 800 cm−1 to 3800 cm−1 with a Fourier transform infrared spectrophotometer, Formula (1) below: IA/IB≤3.5 is satisfied (in the formula, “IA” represents a spectrum value at 3500 cm−1 and “IB” represents a spectrum value at 1100 cm−1).
Abstract:
By using a composition for forming a light scattering composite, including surface-modified inorganic oxide particles surface-modified by a surface modification material having one or more functional groups selected from an alkenyl group, an H—Si group, and an alkoxy group, and an uncured matrix resin composition, in which an average dispersed particle diameter of the surface-modified inorganic oxide particles is 3 nm or more and 150 nm or less, and a content of the surface-modified inorganic oxide particles is 0.01% by mass or more and 15% by mass or less in a total solid content, it is possible to provide a white optical semiconductor light emitting device which has excellent light transmitting properties and scattering properties even if the content of light scattering particles is reduced, and as a result, further suppresses blue light irradiation and enhances a white light luminance, while enhancing color rendering properties.
Abstract:
A method of manufacturing a composite composition, having: bonding a dispersant to the surfaces of inorganic oxide particles to provide dispersibility in a hydrophobic solvent to the inorganic oxide particles, and then dispersing the inorganic oxide particles in a hydrophobic solvent; substituting the dispersant bonded to the surfaces of the inorganic oxide particles with a surface modifier, which is a polydimethylsiloxane-skeleton polymer having one functional group at one terminal end, in the hydrophobic solvent in which the organic oxide particles are dispersed to bond the functional group of the polydimethylsiloxane-skeleton polymer to the surfaces of the inorganic oxide particles; and conjugating a silicone resin and the inorganic oxide particles obtained in the previous step, wherein the surface thereof is modified by bonding the polydimethylsiloxane-skeleton polymer having one functional group at one terminal end thereof, to obtain a composite composition.